Mechanical movement.



No. 005,000. PATENTBD NOV. 21, 1905..

' J. DIBTZ.

4 MECHANICAL MOVEMENT.

APPLIOATION PILED AUG. 10, 1905.

I 2 sums-sum 1.

PATENTED NOV. 21, 1905.

J. DIETZ.

MECHANICAL MOVEMENT.

APPLICATION FILED AUG. 10, 1906.

l. :Q. I n-HM -L: N wag/4k UNITED STATES PATENT OFFICE.

JOHN DIFTZ, OF CINCINNATI, OHIO, ASSIGNOR TO CONRAD DIETZ, OFCINCINNATI, OHIO.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented Nov. 21, 1905'.

Application filed August 10, 1905. Serial No- 273,543.

To all whom it may concern.-

Be it known that I, JOHN DIETZ, a citizen of the United States, residingat Cincinnati, in the county of Hamilton and State of Ohio, haveinvented certain new and useful Improvements in Mechanical Movements,.of which the following is a specification.

My invention relates to means for converting continuous rotary motioninto alternating rotary motion, and is especially adapted for use inoperating washing-machines, churns, ice-cream freezers, and any othermachine in which such a motion is desired.

The object of my invention is to simplify the construction and toproduce more direct transmission of power, thereby eliminating frictionand wear.

My invention consists in an ovoidal guideway for a driving-shaft, saiddriving-shaft being preferably provided with a universal joint andhaving a pinion mounted thereon adapted to mesh with a gear-wheel on adriven shaft, and in means to limit the gear-wheel to partialalternating revolutions.

My invention also consists in the parts and in the combination andarrangement of parts, as will be hereinafter more fully set forth andclaimed.

In the drawings, Figure 1 is a perspective view of a washing-machineembodying my invention, part of the tub thereof being broken away toshow the interior. Fig. 2 is a perspective view showing a modificationof part of my invention, the pinion being in a position corresponding tothat shown in Fig. 1 2'. 6., the upper position. Fig. 3 is a similarview showing the pinion about midway of its downward movement, and Fig.1 similarly illustrates my invention when the pinion is' working in itslower position. Fig. 5 is a perspective view of another modification.Fig. 6 illustrates how my invention is provided with a shield or guard.Fig. 7 is a horizontal section on a line corresponding to :0 00 of Fig.6, the movable parts being shown in ele-- vation; and Fig. 8 is likewisea vertical section. Fig. 9 is an end elevation of the frame, the movableparts being removed.

The preferable construction of my improved mechanism is substantially asfollows: The

. frame 1 has suitable bearings 52 for the driving-shaft 3, which isprovided with the universal joint 4. The driven shaft 5 is alsojournaled in the frame 1 at 6 at an angle to the shaft 3. Rigidlymounted upon the driven shaft is a segmental gear-wheel 7, provided witha downwardly-extending lug 8. A lug 9 is provided upon the frame 1,adapted to be engaged by the lug 8. The pinion 10, being upon thejointed driving-shaft 3, is adapted to operate either above, below, oraround the teeth on the segmental gear 7. The frame 1 is provided withthe ovoidal guideway 11 for receiving and guiding the shaft 3. Thisguideway is provided at its upper and lower extremities with thebearings 12 to receive the shaft and maintain it in proper alinementwhen in its upper and lower positions. The shield 13 of suitable shapeis formed in two sections and held in place by the lugs 14:, engagingwithin recesses 15-in the frame, and by the bolt 16.

I have illustrated my invention as applied to a washing-machine in whichthe dasher 17 is movable vertically on the driven shaft. When thedriving-shaft is rotated continuously in either direction, it will causethe driven shaft to rotate alternately in opposite directions, producinga partial revolution each time before reversing.

To illustrate the operation of my invention, suppose the driving-shaft 3to be revolved to the right from the position illustrated in Fig. 7 Thepinion 10 will pass downward until the driving-shaft3 engages within thelower bearing 12. The segmental gear 7 will now revolve to the left, thelug 8 of'the gear-wheel leaving the lug 9 of the frame and the drivenshaft 5 and dasher 17 will be revolved with it. This will continue untilthe lug 8 engages the lug 9 on its opposite side. The shaft 3 continuesto revolve in the same direction; but

the pinion 10, mounting the last tooth of the segmental gear 7 iscarried to its upper hearing, passing from the lower to the upper sideof the teeth of the segmental gear and now causing it and the drivenshaft, to which it is rigidly secured, to move to the left, and so on aslong as the shaft 3 is revolved. The ovoidal guideway allows the pinionto pass to one side and around the teeth of the segmental gear in such amanner that the proper relative positions of the pinion and gear arealways maintained, thus eliminating destructive wear and increasing theefliciency of the power transmission, while the segmental gear is al-Preferably a roller-bearing 18, adapted to bear upon the rim 19 of thesegmental gear 7 is provided to maintain a proper clearance, as at 20.Fig. 7 between the wheel and pinion. The friction between thedriving-shaft 3 and the guideway 11 may be diminished by providing theroller 21 upon the driving-shaft adjacent the pinion, as shown in Fig.5.

It will be apparent that my invention is capable of some modificationwithout departing from the scope and spirit thereof.

I claim 1. In a mechanical movement, a gear-wheel limited to partialalternating revolutions, a driving-shaft, a pinion on said driving-shaftin mesh with said gear-wheel and a frame provided with an ovoidalguideway for said driving-shaft.

2. In a mechanical movement, a gear-Wheel limited to partial alternatingrevolutions, a driving-shaft, a pinion on said driving-shaft in meshwith said gear-wheel, a frame provided with an ovoidal guideway for saiddriving-shaft, and having bearings in said ovoidal guideway for saiddriving-shaft, substantially as specified.

3. In a mechanical movement, a frame havlng an ovoldal guldeway thereinand a pro ectlon thereon, a gear-wheel ournaled 1n sald frame having aprojection thereon adapted to engage said projection on said frame, adriving-shaft journaled in said frame and adapted to swing in saidovoidal guideway, and apinion on said driving-shaft adapted to mesh withsaid gear wheel and to be guided by said ovoidal guideway.

4:. In a mechanical movement, a segmental gear-wheel having a projectionthereon opposite the segment thereof, a driving-shaft having a joint, aframe in which said segmental gear-wheel and said driving-shaft arejournaled having an ovoidal guideway therein and a projection thereonadjacent said segmental gear-wheel in a position intermediate of thejournals of said segmental gear-wheel and said driving-shaft and adaptedto be engaged by the projection on said gear-wheel, a pinion on saiddriving-shaft adapted to mesh with the upper and lower sides of saidsegmental gear-wheel and to be guided by said ovoidal guideway from oneside of said segmental gear-wheel to the other when said projection onsaid gear-wheel engages said projection on said frame.

JOHN DIETZ. Witnesses:

JAMES N. RAMsEY, ESSIE LIVINGSTON.

